本文選題：TBM + 盤形滾刀�。� 參考：《石家莊鐵道大學(xué)》2015年碩士論文

【摘要】：全斷面巖石掘進機(簡稱TBM)是集機械、電子、液壓、激光技術(shù)為一體的大型工廠化隧道施工作業(yè)系統(tǒng)。盤形滾刀是TBM的關(guān)鍵部件之一,其直接用于破巖,為易損件。介紹了盤形滾刀的基本情況。分析了滾刀的破巖機理,結(jié)果表明滾刀主要是通過剪切與壓碎來進行破巖;通過在遼西北供水工程、西秦嶺隧道工程、中天山隧道工程等工地的實踐,研究了滾刀的失效形式以及多方面原因,其以正常磨損為主,兼有偏磨、漏油、刀圈斷裂、擋圈脫落等非正常磨損,結(jié)合在越南上昆嵩引水項目實習(xí)經(jīng)歷,重點探究了該項目試掘進期間滾刀大量異常磨損原因。根據(jù)TBM施工現(xiàn)場數(shù)據(jù)研究刀具的消耗問題。影響刀具消耗的因素多種多樣,進行刀具消耗預(yù)測時應(yīng)綜合考慮。分析了刀具磨損與刀具自身因素、地質(zhì)因素、掘進參數(shù)等方面的關(guān)系,得到刀具消耗與刀位號的關(guān)系:刀位號越大則刀具消耗量也越大;根據(jù)中天山隧道工程統(tǒng)計數(shù)據(jù)擬合出百米耗刀量與石英含量的關(guān)系式,該公式可為類似工程提供參考;分析了刀具大量磨損前后刀盤扭矩與刀盤推力的變化:刀具磨損后刀盤扭矩有明顯波動,刀盤推力呈上升趨勢;介紹了幾種主要的刀具消耗預(yù)測模型,并對基于TBM工作條件等級的刀具消耗預(yù)測公式進行改進,結(jié)果更符合預(yù)計耗刀率。比較了國內(nèi)外主要的刀具磨損及失效檢測方法,并介紹一種基于電渦流傳感器新型滾刀磨損實時監(jiān)測裝置,重點介紹了掘進參數(shù)分析法,其利用刀盤扭矩與掘進速度的變化來判斷刀具磨損情況,其原理是正確的,但缺乏廣泛性、適用性,目前尚處于研究階段。研究了刀具管理的內(nèi)容,提出了刀具管理的流程,包括刀具測試、刀具使用、刀具檢查與更換、刀具維修、數(shù)據(jù)的記錄與整理、刀具的運轉(zhuǎn)與存放。研究了刀具信息化管理的重要意義,利用C#語言與數(shù)據(jù)庫SQL編寫了刀具消耗統(tǒng)計軟件,該軟件具有按刀位號統(tǒng)計、按刀號統(tǒng)計、備品備件統(tǒng)計等功能,可以把施工現(xiàn)場大量紙質(zhì)查刀文件轉(zhuǎn)化為電子版存儲。
[Abstract]:Full-section rock tunneling machine (TBM) is a large factory tunnel construction system which integrates mechanical, electronic, hydraulic and laser technology. Disc hob is one of the key parts of TBM. The basic situation of disc hob is introduced. The rock breaking mechanism of the hob is analyzed. The results show that the hob is mainly broken by shearing and crushing, and through the practice of the water supply project in northwest Liaoning, the west Qinling tunnel project, the Zhongtianshan tunnel project, etc. The failure form and various reasons of hob are studied. Its main wear is normal wear, and it also has abnormal wear, such as partial wear, oil leakage, cutter ring fracture, ring shedding, etc., combined with the practice experience of water diversion project in Upper Kunsong, Vietnam. The causes of abnormal wear of hobs during the trial excavation of the project are discussed in detail. Based on the data of TBM construction site, the problem of tool consumption is studied. There are a variety of factors affecting tool consumption, which should be taken into account when forecasting tool consumption. The relationship between tool wear and tool itself, geological factors and tunneling parameters is analyzed. The relationship between tool consumption and cutter position number is obtained: the larger the tool position number, the greater the tool consumption; According to the statistical data of Zhongtianshan Tunnel, the relationship between the quantity of 100 meters knife consumption and the content of quartz is fitted, and the formula can be used as a reference for similar projects. The variation of cutter head torque and head thrust before and after heavy wear is analyzed: the torque of cutter head has obvious fluctuation after tool wear, and the thrust of cutter head is on the rise, and several main forecasting models of tool consumption are introduced. The prediction formula of tool consumption based on TBM working condition grade is improved and the result is more in line with the predicted tool consumption rate. This paper compares the main methods of tool wear and failure detection at home and abroad, and introduces a new type of real time monitoring device of hob wear based on eddy current sensor, with emphasis on the analysis of tunneling parameters. The tool wear is judged by the change of cutter torque and tunneling speed. Its principle is correct, but it is lack of universality and applicability, so it is still in the research stage. The contents of tool management are studied, and the process of tool management is put forward, including tool testing, tool use, tool inspection and replacement, tool maintenance, data recording and finishing, and tool operation and storage. The important significance of tool information management is studied, and the tool consumption statistics software is compiled by using C # language and database SQL. The software has the functions of statistics by tool number, spare parts statistics, etc. Construction site can be a large number of paper knife files into electronic storage.
【學(xué)位授予單位】：石家莊鐵道大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：U455.31

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本文編號：2010670